Wave-motor pump



CLIFFORD L. KEDDY, OF LYNN, MASSACHUSETTS, ASSIGNOR TO ALBERT F. AEBOTT,0F MEDFOB/D, MASSACHUSETTS.

WAVE-MOTOR PUMP.

l Application led June 6,

To all whom t may concern:

Be it known that I, CLIFFORD L. KEDDY, a subject of the King of GreatBritain, residing at Lynn, in the county of Essex and State ofMassachusetts, have invented new and useful Improvements in lave-MotorPumps, of which the following is a specification.

The object ot' the present invention is to provide a pump adapted to bemounted on boats and other ioating bodies and to be operated by themotion of the Waves of the sea. Such a pump may be made in various sizesand is designed to be installed in vessels for the purpose or" pumpingout bilge Water, or for other purposes, under actuation of the motion ofthe vessel in riding the waves. Further objects are to provide a.mechanism of the character and for the purposes indicated which shallhave ample power for doing the work required and shall. be operated byrelatively very slight rolling or pitching' movements of the vessel, andto embody such mechanism in a seit-contained structure of simplecharacter capable ol being made at low cost and sold as an independentmachine ready to be conveniently mounted by the purchaser in theposition for use. v

In the drawings herewith presented, Figure l a plan view in the formolf' a Wave motor pump embodying my invention. Figure 2 is an elevationof the pump. Figure 3 is a sectional view on line 3 8 of Figure l;Figure 4 is a fragmentary elevation of one end of the guide which formsa part of the apparatus and Figure 5 is a sectional vieu7 taken on line5-5 of Figure l showing a detail of the device.

The same reference characters indicate the same partsin all the tigures.

Referring to these drawings G represents a base plate to which there issecured a pump vcylinder 7, the latter having ianges 8 which aresuitably secured to the base plate, as by bolts 9, A piston 10reciprocates in this cylinder, and to the piston is secured episton rodll, the outer end ot' which is sup ported and guided by a bracket l2.Said bracket, which may also be called the piston rod guide, is shown indetail in Figure 5. It has a toot portion 13 which rests on the baseplatel and is secured thereto, and in its upper part there is Jformed aguide or slot 14 in Whichthe piston rod llpfits, said guide slot 1919.Serial No. 362,109.

or guideway being covered, and the piston rod securely retained therein,by a removable cover plate l5.

The pump cylinder is provided with an intake pipe 16, preferablyarranged to deliver through the head of the cylinder, because therebythe suction of the piston acts directly in the line of delivery ot theintake, and with an outlet pipe 17 which delivers from the side of thecylinder near the head, but may lead from the head if occasion requires.Both pipes are provided with check valves, the check valve 18 in theintake pipe opening inwardly but closing under outward pressure, and thecheck valve 19 in the delivery pipe epening' under outward pressure andbeing closed by inward pressure.

The piston rod is engaged with a lever arm 20, the end Oi' which ispreferably forked so as to embrace the rod, as shown in Figure Bothbranches of the fork are slotted as indicated at 21 in Figure l, and theslots therei receive the ends of a pin 22 mounted in the piston rod. Arm2O is part of a. tvvo armed lever which is mounted on a fulcrum 23, thelatter being conveniently a stud set into a post24c rising from the baseplate, as shown in Figure 3. Conveniently the base plate is a castingand said post 24 may be made as an integral stud or boss ot suchcastiiig; and so also'may the guide l2 and the trackiv'ay, presently tobe described, be made as integral parts of the same casting. rFlicsecond arm of said lever is designated 25 and its outerA end 26 is givena. relatively great mass, whereby it is adapted -under the influence otgravity to exert considerable force tending to move the pump piston. Toprovide this mass the said outer end is enlarged, and such enlarged endmay be either a solid body of metal integral with the balance of thelever', or a hollovv structure filled With heavy metal, such as lead.rl'his Weight is supported by a Wheel or truck 27, which turns about astud 28 projecting from the end of the Weight and rolls upon a `runwayor track 29, such track being curved in conformity with the arc orptravel of the Wheel about the fulcrum 23 and having whatever length isnecessary, in proportion to the ratio of the lever arms 2O and 5, toenable the lever to give the predetermined full stroke to the-pumppiston. At the ends of the track or rrunway are uprights 30 Jformingstops Which linlttll@ movement of the \\'eiglit,a1id in or upon whichare mounted spring buffers 3l arranged to bear against the wheel andthus arrest the lever without abrupt- .shocks -..L\djacent `tothesefposts Lthe s -zupporting surface of the runuv'ayuis preferablyinclined upwardl)v as shown at 32 in Figures 2 and i, for t-hepurposeofmoreV latter is inpositionunder `it,whereby to hold the weightimmovable and thus prevent operation ofjthepump, whenfdesired.

It wllbennde'rstood from this descriptionthattilting of the bedplate- 6about anaXis more orless nearly parallel with the 1ever"20, 25 willcause the weight to fall toward thelow side otfthe bedplate as far aspermitted by therunwayi stops,. and to reverse its direction ot movementwith eac-h reversal of the manner ot tiltingot1 the bed plate. 'Therebythe pump plunger is moved back-and forth in a manner such as to drawwater through the inlet vand expel it through theoutlet. vThen theapparatus is puton a vessel 'with theline of the midposition ofthe leverin a `fore andaft line of the-vessel, rolling ofrltlie vessel will causeworkingfthe pump ,while if it is, placed in an athwart ship'position,pitching of the vessel -w'illv have the same'effect. W'hen a suctionvpipe leading to the bilges of the vessel is connected to thev intake,and a, pipe leading overboard is connected tothe outlet ofthe pump, themotor becomes an automatic bilge pump. A number of such pumpsmay, ifdesired, be installed inthe same vessel arranged in Vdifferent `relativepositionsif desired, or all in thesa-me relative position, according tothe results sought. Pumps of enough capacity would be installed in onevessel to take ycare of the normal leakage of 'the vessel, and inthecase ofen iopenvbOat,to pump out rain-water; -and, `to lthisend 1.l 1 emotor,is* effective while the= .boat lies at anchor.

'Anadvantage results "from 'the factthat the weighted lever arm swingsin asubstantially horizontal plane, whereby it is able tomake itsullstroke with a very slight tilting ot' thebedplate, and Ainconsequence witha very slightmotion of the vessel. The wheeler truck'27running on -a trackway,

and whether or not equipped with :i1-ball bearing, ,supportsgthe -w inhtina manner which'largelyeliminates 'motion ndi; Prevents cra'mplng of:the lever upon 1the'fu1- Crum; thusallowing the torce of gravity to beapplied with inconsiderable friction losses to operating the pump.

'I0-t' course the foregoing lsuggestion of a possible .usenet theinvention is not to be taken as indicating a limitation oiE the scopeo-the protection which 1 claim for this invention. rl`he machine may beinstalled upon anyl sort of support, whereby it may be actuated by themotions of waves on a body oli-water, and may be used for pumpinganysortfof liquid from any source to any destination.

Various modifications in the structure may be made without departingfrom the protect-ion claimed; as for instance, by connectingthe leverand piston head by a pivoted link rather than a rod rigidly guided tomove in a straight line by making the operating lever as a bell crank orotherwise, and with its, arms on thesame side as wellaslonldiijlferentsides ofthe" ulcrum; and in various 4other respects "known to mechanics.

llhat I'claim and desire to'secure by Letters APatent is:

1.'A wave motor pump. coi'nprising .a pump vchamber with a pistontherein, a lever connected with said piston to operate the same by itsswinging movements, said lever having` a weighted arm mounted atsubstantiallypthesame height therewith to swing in a substantiallyhorizontal plane, andA anti-friction supporting and guiding` ineanstorsaid weighted arm.

Awave mot-orpump comprising a base, a .lever .pivoted upon saidba'seandhaving a Weighted arm, an antifrictionwheel carried by saidweighted arm,atraokway` on "the base uponwhich said wheel rests and is adapted torun, said lever and trackway being substantially horizontal and the axisof the lever substantially vertical, whereby the lever is caused bygravity to Vmove'when the vbase is tilted, a pump, and connectionsbetween s ad'lever andpump by'vvhich movements O'E'the'former actuatet-he latter.

3. A Vwave motor pump comprising in combination a support adapted to bemounted on a Afloating body and having a substantially vertical'pi vot,va lever k tulcrumed upon said; pi votandV having a 'long arm with a:weight at 'itsjend, means for supporting vvsaid weighted long arm inafmannerA permit-ting swinging movement ci `the leverand preventingcramping ofthe' lever upon its pivot, said lever having second arm, vapump, and means by which said second lever arm operates said pump whenthe, lever swings. I 4. A. waveY motor comprising a pump cylindervhaving an inlet and an outlet, a: piston workingin `said cylinder, an:operating Ilever Qnearm lof vwhich is 'operatively' connected with saidpiston,l Vthe lever havingA a second arm with a weight at its end andbeing mounted to swing by a substantially vertical pivot, and means torsupporting` the weighted end ot said second arm and permitting the same'to move over its support when the .machine is tilted.

5. A wave motor pump comprising a base plate having a pivot support, avertical pivot on said support, a lever ulcrumed upon said pivot having'a. weighted operating arm7 an antiiriction wheel mounted upon said arm,a track or runway on said base plate beneath the path in which saidwheel moves in the swinging motion of the lever,-

a pump cylinder and piston, and connections between said lever and pumppiston tor operatinL-'g` the piston when the lever swings.

6. wave motor pump comprising a base plate having a pivot support, alvertical pivot on said support, a lever fulcrumed upon said pivothaving a weighted operat ing arm, an antifriotion wheel mounted uponsaid arm, a track or runway on said base plate beneath the path in whichsaid wheel moves in the swinging motion of the lever, a pump cylinderand piston, connections between said lever and pump piston for operatingthe piston when the lever swings, and stops at the ends of said tracklimiting the extent of movement of the arm in either direction.

In a wave motor pump. a substantially vertical pivot, a trackwayconcentric with said pivot in a sbstantially horizontal plane, a leverhaving an arm with a weight on its end mounted to swing about saidpivot7 an antifriction wheel journaled upon said arm and resting` uponsaid traclnvay7 supporting the arm, stops at each end of the traclrwayfor arresting the movements of said arm, spring buiers on said stops7and a pump unit in connection with said lever for operation thereby.

8. A. wave motor pump coi'nprising` the combination with a pumpcylinder, a piston arranged to travel in said cylinder and having anextended piston rod, oi' a lever pivoted at one side of said piston rodto swing in a substantially horizontal plane and on a substantiallyvertical axis when the pump is in position for use. said lever having along arm with a weigh at its outer end, and a short air-m7 said shortarm extending` across the line of the piston rod and having; a motiontransmitting yconnection therewith.

9. A wave motor pump comprising a weighted arm adapted to swing in asubstantially horizontal plane and having a supporting wheel, a pumphaving a piston connected with said arm, and being operable by back andforth swinging movements of the latter, and a track on which said wheelis adapted to roll, said pump being` adapted for mounting upon aiioating support and to be operated hy rolling` or pitching of triesupport by wave action7 and the wheel engaging-surface of the trackbeing` inclined upwardly toward an end thereof` whereby to facilitatethe return movements oi the weighted arm away from the said track end.

In testimony whereof I have aied iny signature.

CLIFFORD L KEDDY.

